AREA OF CONCERN

Canada

(Click on the different headings to open/close the related information)

Toronto & Region, Ontario
(This section includes Stage of RAP development, Beneficial Use Impairments and their delisting targets, and information on whether the AOC has been accurately mapped.)

Stage of RAP Development:

2

Are electronic maps available that include the AOC's geographic boundaries and associated sources of pollution?

Yes

Beneficial Use Impairments (BUI):
(The BUI will appear underlined if a delisting target has been determined.
If underlined, click on the BUI to display the delisting target.)

Restrictions on Fish and Wildlife Consumption

There are no restrictions on fish consumption that are attributable to local sources.

Degraded Fish and Wildlife Populations

* Tests on fish confirm that ambient waters and sediments do not cause death or long-term health or reproductive effects.
* Biomass of resident, fish-eating fish species increased to levels above 20% of total resident biomass; biomass of specialist fishes increased to at least 40% of total biomass.
* Formerly abundant fish populations are rehabilitated where locally depressed or extinct.
* Proportion of native species is increased towards 100% of total fish community.
* Specific targets contained in watershed plans should be used. Where not plans exist they should be developed.
* In cold water fisheries areas, sufficient stormwater controls are established to control run-off from rainfall events of at least 25 mm daily precipitation; buffer zones of 30m or more separate developed lands from receiving streams and lakes; temperature impacts should be mitigated.
* In warm water fisheries area, sufficient stormwater controls are established to control run-off from rainfall events of at least 25 mm daily precipitation; buffer zones of 15 m or more separate developed lands from receiving streams and lakes.

Degradation of Benthos

* Suspended, transported, and in-place sediments contain levels of contaminants at or below the Provincial Sediment Quality Guidelines.
* Materials used in lakefilling meet the Fill Quality Guidelines for Lakefilling in Ontario.
* Lakefilling produces no net loss of aquatic habitat.
* Lakefill structures do not have adverse effects on water circulation.

Restrictions on Dredging Activities

* Spended, transported, and in-place sediments contain levels of contaminants at or below the Provincial Sediment Quality Guidelines.
* Dredged sediments meet Provincial Sediment Quality Guidelines.
* Materials used in lakefilling meet the Fill Quality Guidelines for Lakefilling in Ontario.
* Lakefilling produces no net loss of aquatic habitat.
* Lakefill structures do not have adverse effects on water circulation.

Eutrophication or Undesirable Algae

* Water quality is as good or better than Provincial Water Quality Objectives 95% of the time.
* Sanitary sewage receives secondary treatment with phosphorus removal and disinfection and produces non-toxic and non-mutagenic effluent with the following characteristics: biochemical oxygen demand: 25 mg/l; total suspended solids: 25 mg/l; total phosphorus: 0.5 mg/L.

Beach Closings

* Lake water at bathing beaches contains less than 100 escherischia coli organisms per 100 ml of water over 95% of the swimming season.
* The quality of storm run-off is protected and enhanced.
* Other than in four extreme discharge occurrences (heavy rainfall events) each year, stormwater discharges to receiving waters meet guideline of 100 Escherischia coli organisms per 100 ml of water, and is devoid of debris, oil, scum and substances that produce objectionable odour, colour, deposits and excessive turbidity.
* 90% of the wet weather flow in the combined sewer system is controlled.
* The controlled volume of combined sewage receives treatment at least equivalent to primary treatment plus disinfection (that is, treatment equivalent to 50% Biochemical Oxygen Demand removal and 70% total suspended solids removal).
* Sanitary sewage receives secondary treatment with phosphorus removal and disinfection and produces non-toxic and non-mutagenic effluent with the following characteristics: biochemical oxygen demand: 25 mg/l; total suspended solids: 25 mg/l; total phosphorus: 0.5 mg/L.

Degradation of Aesthetics

* Water quality is as good or better than Provincial Water Quality Objectives 95% of the time.
* Waters are free of any substance that produces a persistent objectionable deposit, unnatural colour or turbidity, or unnatural odour (for instance, oil slick or surface scum).

Loss of Fish and Wildlife Habitat

* Open coast habitat is rehabilitated suitable for spawning populations of salmonoid fish such as trout.
* Sheltered bays are rehabilitated to encourage re-establishment of aquatic plants suitable for northern pike, smallmouth bass and largemouth bass spawning, nursery and feeding habitat.
* Diverse aquatic plant communities are re-established in river mouths and estuaries suitable for largemouth bass and northern pike production; rubble/rock slopes are established in fast-flowing river areas favourable for smallmouth bass production.
* Biotic corridor linkages are protected, enhanced, or rehabilitated across the waterfront and throughout the stream and valley system.
* Remaining and created wetlands are protected. A significant amount (eg. A preliminary target of 75 hectares) of wetland areas should be restored to the waterfront and protected.
* Specific targets contained in watershed plans should be used. Where no plans exist they should be developed.

CONTAMINATED SEDIMENT

Estimated remaining volume of contaminated sediment within the AOC:

no information

Remediation to Date
Project Name:	Amount Remediated:	Remediation Cost:
Natural Recovery & Source Control is being considered		$0

Planned Action Regarding Sediment Remediation
Project Name:	Amt. to be Remediated:	Estimated Cost:

WASTEWATER INFRASTRUCTURE

Improvements to Wastewater Infrastructure - Dollars Spent:
Environment Canada	$29300000
Ontario	$49500000
2 CSO tanks completed in Eastern Beach area	$0
Western Beach Tunnel	$0

Identified Future Costs for Wastewater Infra. - Dollars Needed:
CSOs and Stormwater Management	$625000000
Wet Weather Flow Management Plan (capital costs)	$1,000,000,000

HABITAT

Projects / Proposals / Costs:

$15700000 on 72 projects - CUF/GLSF

20 ha. of fish & wildlife habitat created

75% of priority in-stream barriers have been mitigated

Removal of stream barriers allow access for salmon into the upper reaches of the Don River

On-going implementation of watershed management plans (including fish habitat, plantings, etc.) & Natural Heritage Strategy by various partnersihps between government agencies and community groups

OTHER SIGNIFICANT ISSUES

Issues, including National Priority List (NPL) sites:

1 non-point source control project $1000000

The Living City Campaign - Toronto Region Conservation Authority and Conservation Foundation of Greater Toronto: $35,000,000 to support programs of healthy rivers, regional biodiversity, and education for sustainable living

MANAGEMENT

Federal	Rimi Kalinauskas, Environment Canada 4905 Dufferin Street Downsview, ON M3H 5T4 (416) 739-5836
Local	Adele Freeman, Toronto and Region CA 5 Shoreman Drive Downsview, ON M3N 1S4 (416) 661-6600x5238

LINK TO ENVIRONMENT CANADA WEBSITE

Please Note: Values provided are intended as indicators only, and may not capture all expenditures or work done. Summary is based on best available Information. "No Information" indicates relevant information was not available at time of publication.